slumping wine bottles problems

[lindacw]

I have a wine bottle mold and have been making cheese/spoon trays.  I have a more than occasional problem of the bottle having spikes/points along the edges like it sticks to the mold.  I use kiln wash after every 2 – 3 firings.  I have tried a hotter cycle, and tried firing with the preprogramed fuse mode on my kiln for 90 and 96 glass.  What could this be from and how do I fix??????

 

THANKS,  Linda

[Stephen Richard]

The spikes indicate that you are firing too hot.  Fire at a lower temperature and soak longer.

Stephen Richard

blogs at: http://www.verrier-glass.blogspot.com/ and  http://www.glasstips.blogspot.com/

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